Running up walls and spinning upside down...

Anyone watching this amazing video showing astonishing, gravity-defying trampoline stunts, might be well advised not don't try it at home.

Nearly 200,000 people have already logged on to watch a man perform a routine of breathtaking acrobatics up against a makeshift wall, after the short clip went viral.

The grainy footage, uploaded to a number of video sharing websites, captures the daredevil gymnast back flip, spin, twirl, somersault and appear to walk up a vertical wall - all without ropes, or apparently any safety equipment.